ASAHIKASEI › DURANATE™ TKA 100 DURANATE™ TKA 100 $0.00 DURANATE™ TKA 100 is a hexamethylene diisocyanate (HDI) trimer. Acts as a curing agent for urethanes. Quantity: Add To Cart Added! DURANATE™ TKA 100 is a hexamethylene diisocyanate (HDI) trimer. Acts as a curing agent for urethanes. You Might Also Like DURANATE™ TPA 100 DURANATE™ 22A 100 DURANATE™ 22A 75PX DURANATE™ E402 100 DURANATE™ TUL 100